Garmin GTX 345 Operator's Manual - Page 13

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ENSTROM F-28F/280FX RFM SUPPLEMENT

CHAPTER 2. NORMAL PROCEDURES

2-1. General

Refer to the basic RFM for procedures not specific to the

GTX 345.

The ADS-B Out system is a single point of entry system for

Mode 3/A code, Flight ID, IDENT functionality and

activating or deactivating emergency status for both

transponder and ADS-B Out functions. Parameters are set

in the transponder at the time of installation and are

automatically incorporated in ADS-B Out broadcasts.

2-2. Before Takeoff

After annunciator panel lights check (basic RFM para. 4-

11, step 12):

The ADS-B Out system must be operational

("NO 1090ES TX" annunciator extinguished

before takeoff) in certain airspaces after

January 1, 2020, as specified by 14 CFR

91.225. Requirements outside of the US may

vary based on local regulations.

The annunciation "NO 1090ES TX" appears in

the lower left corner of the GTX 345 when the

ADS-B TX is manually turned off or when there

is a transmission malfunction.

ADS-B Out may be required in certain airspace.

Do not turn off ADS-B OUT unless directed by

air traffic control.

FAA Approved: Mar 28/19

Report No. 28-AC-081

This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional

Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website

for the current revision level of the Rotorcraft Flight Manual Supplement.

NOTE

2-1

Jan 15/19